Home / 1,741.28-2,615.02-1,279.98

Finding the Fourth Proportional to 1,741.28, 2,615.02 and 1,279.98

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Solution

The fourth proportional to 1,741.28, 2,615.02 and 1,279.98 is: 1,922.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,741.28 : 2,615.02 = 1,279.98 : x
  2. Step 2: Convert to fraction form
    1,741.28/2,615.02 = 1,279.98/x
  3. Step 3: Cross multiply
    1,741.28x = 2,615.02 × 1,279.98
  4. Step 4: Simplify right side
    1,741.28x = 3,347,170.10
  5. Step 5: Solve for x
    x = 3,347,170.10/1,741.28
  6. Step 6: Final answer
    x = 1,922.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.